tiny-skia 0.5.1

A tiny Skia subset ported to Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142

// Copyright 2020 Evgeniy Reizner
//
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Based on https://github.com/Lokathor/wide (Zlib)

use bytemuck::cast;

cfg_if::cfg_if! {
    if #[cfg(all(feature = "simd", target_feature = "sse"))] {
        use safe_arch::*;

        #[derive(Default, Clone, Copy, PartialEq, Debug)]
        #[repr(C, align(16))]
        pub struct f32x4(m128);
    } else {
        #[derive(Default, Clone, Copy, PartialEq, Debug)]
        #[repr(C, align(16))]
        pub struct f32x4([f32; 4]);
    }
}

unsafe impl bytemuck::Zeroable for f32x4 {}
unsafe impl bytemuck::Pod for f32x4 {}

impl f32x4 {
    pub fn splat(n: f32) -> Self {
        Self::from([n, n, n, n])
    }

    pub fn max(self, rhs: Self) -> Self {
        cfg_if::cfg_if! {
            if #[cfg(all(feature = "simd", target_feature = "sse"))] {
                Self(max_m128(self.0, rhs.0))
            } else {
                Self([
                    self.0[0].max(rhs.0[0]),
                    self.0[1].max(rhs.0[1]),
                    self.0[2].max(rhs.0[2]),
                    self.0[3].max(rhs.0[3]),
                ])
            }
        }
    }

    pub fn min(self, rhs: Self) -> Self {
        cfg_if::cfg_if! {
            if #[cfg(all(feature = "simd", target_feature = "sse"))] {
                Self(min_m128(self.0, rhs.0))
            } else {
                Self([
                    self.0[0].min(rhs.0[0]),
                    self.0[1].min(rhs.0[1]),
                    self.0[2].min(rhs.0[2]),
                    self.0[3].min(rhs.0[3]),
                ])
            }
        }
    }
}

impl From<[f32; 4]> for f32x4 {
    fn from(v: [f32; 4]) -> Self {
        cast(v)
    }
}

impl From<f32x4> for [f32; 4] {
    fn from(v: f32x4) -> Self {
        cast(v)
    }
}

impl core::ops::Add for f32x4 {
    type Output = Self;

    fn add(self, rhs: Self) -> Self::Output {
        cfg_if::cfg_if! {
            if #[cfg(all(feature = "simd", target_feature = "sse"))] {
                Self(add_m128(self.0, rhs.0))
            } else {
                Self([
                    self.0[0] + rhs.0[0],
                    self.0[1] + rhs.0[1],
                    self.0[2] + rhs.0[2],
                    self.0[3] + rhs.0[3],
                ])
            }
        }
    }
}

impl core::ops::AddAssign for f32x4 {
    fn add_assign(&mut self, rhs: f32x4) {
        *self = *self + rhs;
    }
}

impl core::ops::Sub for f32x4 {
    type Output = Self;

    fn sub(self, rhs: Self) -> Self::Output {
        cfg_if::cfg_if! {
            if #[cfg(all(feature = "simd", target_feature = "sse"))] {
                Self(sub_m128(self.0, rhs.0))
            } else {
                Self([
                    self.0[0] - rhs.0[0],
                    self.0[1] - rhs.0[1],
                    self.0[2] - rhs.0[2],
                    self.0[3] - rhs.0[3],
                ])
            }
        }
    }
}

impl core::ops::Mul for f32x4 {
    type Output = Self;

    fn mul(self, rhs: Self) -> Self::Output {
        cfg_if::cfg_if! {
            if #[cfg(all(feature = "simd", target_feature = "sse"))] {
                Self(mul_m128(self.0, rhs.0))
            } else {
                Self([
                    self.0[0] * rhs.0[0],
                    self.0[1] * rhs.0[1],
                    self.0[2] * rhs.0[2],
                    self.0[3] * rhs.0[3],
                ])
            }
        }
    }
}

impl core::ops::MulAssign for f32x4 {
    fn mul_assign(&mut self, rhs: f32x4) {
        *self = *self * rhs;
    }
}